高速平均流场光学传输效应研究

在未来高技术局部战争需要的牵引下 ,新一代防空导弹朝着高速化、精确制导化方向发展。高速成像制导导弹在大气层内飞行时 ,其光学头罩与大气之间发生剧烈的相互作用 ,产生严重的气动光学效应 ,从而对红外成像末制导及其应用技术提出了新的要求。以红外成像制导技术在高速拦截器上的应用需求为背景 ,进行了高速平均流场光学传输效应理论计算基本方法的分析 ,介绍了建立的数学模型和仿真软件 ,最后给出了典型状态下的计算结果

Recent Researches on the Optical Transmission Distortions Throughout the Average Flow Field

The aerodynamic flow of an aircraft or other air vehicles in flight has a marked influence on the performance of the onboard optical sensor system. Missile-carrying interceptor seeker's windows will undergo severe heat and stress during supersonic flight. These effects lead to the distortions of the window and flow field that can significantly degrade the image quality on the seeker. A method is developed to predict the optical transmission of the average flow field, and the approach and some computer simulation results are presented.